/*
silverPDF is sponsored by Aleyant Systems (http://www.aleyant.com)

silverPDF is based on PdfSharp (http://www.pdfsharp.net) and iTextSharp (http://itextsharp.sourceforge.net)

Developers: Ai_boy (aka Oleksii Okhrymenko)

Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:

The above information and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR SPONSORS
BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

*/
using System;
using System.Diagnostics;
using PdfSharp.Drawing;
using PdfSharp.Pdf;

namespace Graphics
{
    /// <summary>
    /// Shows the capabilities of lines and curves functions.
    /// </summary>
    public class LinesAndCurves : Base
    {
        public void DrawPage(PdfPage page)
        {
            XGraphics gfx = XGraphics.FromPdfPage(page);

            DrawTitle(page, gfx, "Lines & Curves");

            DrawLine(gfx, 1);
            DrawLines(gfx, 2);
            DrawBezier(gfx, 3);
            DrawBeziers(gfx, 4);
            DrawCurve(gfx, 5);
            DrawArc(gfx, 6);
        }

        /// <summary>
        /// Draws simple lines.
        /// </summary>
        void DrawLine(XGraphics gfx, int number)
        {
            BeginBox(gfx, number, "DrawLine");

            gfx.DrawLine(XPens.DarkGreen, 0, 0, 250, 0);

            gfx.DrawLine(XPens.Gold, 15, 7, 230, 15);

            XPen pen = new XPen(XColors.Navy, 4);
            gfx.DrawLine(pen, 0, 20, 250, 20);

            pen = new XPen(XColors.Firebrick, 6);
            pen.DashStyle = XDashStyle.Dash;
            gfx.DrawLine(pen, 0, 40, 250, 40);
            pen.Width = 7.3;
            pen.DashStyle = XDashStyle.DashDotDot;
            gfx.DrawLine(pen, 0, 60, 250, 60);

            pen = new XPen(XColors.Goldenrod, 10);
            pen.LineCap = XLineCap.Flat;
            gfx.DrawLine(pen, 10, 90, 240, 90);
            gfx.DrawLine(XPens.Black, 10, 90, 240, 90);

            pen = new XPen(XColors.Goldenrod, 10);
            pen.LineCap = XLineCap.Square;
            gfx.DrawLine(pen, 10, 110, 240, 110);
            gfx.DrawLine(XPens.Black, 10, 110, 240, 110);

            pen = new XPen(XColors.Goldenrod, 10);
            pen.LineCap = XLineCap.Round;
            gfx.DrawLine(pen, 10, 130, 240, 130);
            gfx.DrawLine(XPens.Black, 10, 130, 240, 130);

            EndBox(gfx);
        }

        /// <summary>
        /// Draws a ployline.
        /// </summary>
        void DrawLines(XGraphics gfx, int number)
        {
            BeginBox(gfx, number, "DrawLines");

            XPen pen = new XPen(XColors.DarkSeaGreen, 6);
            pen.LineCap = XLineCap.Round;
            pen.LineJoin = XLineJoin.Bevel;
            XPoint[] points =
              new XPoint[] { new XPoint(20, 30), new XPoint(60, 120), new XPoint(90, 20), new XPoint(170, 90), new XPoint(230, 40) };
            gfx.DrawLines(pen, points);

            EndBox(gfx);
        }

        /// <summary>
        /// Draws a single Bйzier curve.
        /// </summary>
        void DrawBezier(XGraphics gfx, int number)
        {
            BeginBox(gfx, number, "DrawBezier");

            gfx.DrawBezier(new XPen(XColors.DarkRed, 5), 20, 110, 40, 10, 170, 90, 230, 20);

            EndBox(gfx);
        }

        /// <summary>
        /// Draws two Bйzier curves.
        /// </summary>
        void DrawBeziers(XGraphics gfx, int number)
        {
            BeginBox(gfx, number, "DrawBeziers");

            XPoint[] points = new XPoint[]{new XPoint(20, 30), new XPoint(40, 120), new XPoint(80, 20), new XPoint(110, 90), 
                                     new XPoint(180, 40), new XPoint(210, 40), new XPoint(220, 80)};
            XPen pen = new XPen(XColors.Firebrick, 4);
            //pen.DashStyle = XDashStyle.Dot;
            gfx.DrawBeziers(pen, points);

            EndBox(gfx);
        }

        /// <summary>
        /// Draws a cardinal spline.
        /// </summary>
        void DrawCurve(XGraphics gfx, int number)
        {
            BeginBox(gfx, number, "DrawCurve");

            XPoint[] points =
              new XPoint[] { new XPoint(20, 30), new XPoint(60, 120), new XPoint(90, 20), new XPoint(170, 90), new XPoint(230, 40) };
            XPen pen = new XPen(XColors.RoyalBlue, 3.5);
            gfx.DrawCurve(pen, points, 1);

            EndBox(gfx);
        }

        /// <summary>
        /// Draws an arc.
        /// </summary>
        void DrawArc(XGraphics gfx, int number)
        {
            BeginBox(gfx, number, "DrawArc");

            XPen pen = new XPen(XColors.Plum, 4.7);
            gfx.DrawArc(pen, 0, 0, 250, 140, 190, 200);

            EndBox(gfx);
        }
    }
}
